A student was able to detect a mas O2. Oxygen was present in excess yield of the reaction? O 50.0% O 90.9% O 150.% O 66.7%

Q: singlet oxygen, -An) Ros (Reactive oxygen species) such as supa oxide, thee & Hydhoxyl radices…

A: Ans) 1 ROS (Reactive oxygen species) such as singlet oxygen, super oxide, H2O2  & Hydroxyl…

Q: A 0.600 g sample of potassium carbonate, K₂CO3 (138.2055 g/mol) is dissolved in 20.00 mL of 0.1700 M…

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Q: A correct definition is:  Instantaneous rate is ____    change in molarity per unit time.…

A: In the question the definition of instantaneous rate have been asked and the correct alternative out…

Q: A pure material has a phase diagram shown in the figure Liquid Pressure Solid I gas (TE, PE) (TBPB)…

A: We are given a phase diagram of a pure material, and we are to write the different temperature and…

Q: Caitlin titrated 25.00 mL of 0.40 M formic acid with 0.25 M LIOH. What volume of lithium hydroxide…

A: Equivalence point: it can be define as the point where moles of the titrant are equal to the moles…

Q: If the  ?a  of a monoprotic weak acid is  2.9×10−6,  what is the  pH  of a  0.29 M  solution of this…

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Q: A 0.728 gram sample of helium gas has a volume of 850 millimeters at a pressure of 3.75 atm. The…

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Q: Give an IUPAC name for the compound below.

A: we have to name the given compound

Q: a. Is it possible for a solution of weak acid and a solution of strong acid to have the same pH? b.…

A: It is a measure of Hydrogen ion concentration in a solution. Strong Acid : The acids which are…

Q: Identify each Brønsted acid and base in the following equations. Note that the reactions are assumed…

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Q: predict the reaction type (single or double displacement)  -- predict the names and states of the…

A: In the question a reaction is given and it is asked to balance it, name the reactant and product and…

Q: What is the molar solubility (in mol/L) of 3.41.10-103.41.10-10) in a 0.49 PbCl2 (Ksp = M NaCl…

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Q: For a second-order reaction with respect to A,  [A]o=0.120 M and t1/2=19.7 sec. Find rate constant…

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Q: Formic acid is a monoprotic acid with a Ka of 1.8 x 10-4. What is the pH of the original 0.40 M…

A: we need to calculate the initial pH of formic acid

Q: Carlee titrates 50.0 mL of 2.0 M methylamine with 1.0 M HNO3. CH3NH₂ Kb = 4.4 x 10-4 What is the pH…

A: Here Methylamine is a weak base and HNO3 is a strong base so this titration is a weak base - strong…

Q: The following thermochemical equation is for the reaction of Fe₂0,(s) with hydrogen (g) to form…

A: Given thermochemical equation : Fe3O4(s) + 4 H2(g) -----> 3 Fe(s) + 4 H2O(g) and for this…

Q: Aditi titrated 80.00 mL of 0.50 M ethylamine, CH3NH2, with 0.40 M HC CH3NH₂ Kb = 4.4 x 10-4 What is…

A: Kb = 4.4×10-4 pKb = 3.36 Molarity of base =0.50 M Volume of base = 80 mL M × V  Mmol of base =M × V…

Q: A certain metal M forms a soluble nitrate salt M(NO3)₂. Suppose the left half cell of a galvanic…

A: In the given Galvanic cell,  the electrode is the same in both the half-cells which is the metal, M.…

Q: What is the pH of the solution at the equivalence point, when Caitlin has added 40.00 mL of the 0.25…

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Q: NH3 + H3O* → NH; + H2O 25.0 mL of the 0.0220 M NH3 was titrated with 0.010 M HBr. It took 55.0 mL of…

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Q: The following information is given for chromium at 1 atm: T= 2672.00°C Tm 1857.00°C Specific heat…

A: Below attached file showing the details answer. All the best.

Q: For a certain first order reaction, it takes 449 seconds for the concentration of reactant to…

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Q: What is the pH of the solution when Maria has added 10.0 mL of 0.25 M NaOH to the 40.00 mL of 0.50 M…

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Q: You are studying the % CI in FeCl2. You have 5.53 g of Ferrous chloride (FeCl2) sample and after a…

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Q: Part B - Alkenes 1. In the chart below, draw the expanded structural formula and the condensed…

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Q: Compute for the concentration of the EDTA solution buffered to a pH of 11.00 (a = 0.85) if the molar…

A: Solution: Given: y-4 = 0.85          [ y-4] = 0.0021 moles [EDTA] = ?

Q: In the redox reaction 6 Fe²+ + Cr₂O7²- + 14 H+ 2 Cr³+ + 6 Fe³+ + 7 H₂O, what is the reducing agent?…

A: Oxidation reduction reaction (Redox reaction) It can be defined as the chemical reaction in which…

Q: In the laboratory a student finds that it takes 28.7 Joules to increase the temperature of 13.1…

A: we have to calculate specific heat of mercury

Q: Do the following with your experimental data. 1 Calculate the amount of heat absorbed by the water.…

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Q: How many milliliters of 0.250 M HNO3 are needed to titrate 35.0 mL of a 0.888 M NaOH solution to its…

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Q: Henry titrated 50.00 mL of 0.25 M formic acid with 0.50 M LIOH. Formic acid is monoprotic and has a…

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Q: Draw the mechanism for one example of the preparation of the following alcohol 1) MgBr OH 袋 2) H₂O 3…

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Q: Draw structural formulas for organic products A and B in the window below. Cul H₂C=CHBr Li pentane A…

A: When alkylhalide is treated with Lithium (Li) it gives an organometallic compound  alkyl lithium…

Q: Draw structural formulas for organic products A and B in the window below. CH3 CH3CCH₂CI _ CH3 Mg…

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Q: 1. For the reaction, NO₂(g) + O3(g) → NO3(g) + O₂(g), the following data were obtained: Experiment…

A: for the reaction, we have to calculate, rate law rate coefficient

Q: Calculate K for the following reaction Cu (s) + 2 Ag+ (aq) ⟶ 2 Ag (s) + Cu2+ (aq);…

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Q: Hydrogen-powered fuel cells are seen increasingly as "clean" sources of energy and are now used in…

A: The volume occupied by 1 mol of gas at standard temperature and pressure (STP) is 22.4 litres.

Q: The formal charge is the "charge an element would have in a molecule or lon if all of the bonding…

A: We are to write formal charge of each atom of SeO3 and decide which lewis structure is best.

Q: All of the following statements are correct EXCEPT.   A. The vapor pressure increases with…

A: We have to select the incorrect statement as the answer.

Q: How do you caclulate the water added?

A: It is given that initially we had the 25 mL of solution. Then we added the water to the solution so…

Q: A 50.00-mL sample of a citrus drink requires 17.62 mL of 0.04166 M NaOH to reach the phenolphthalein…

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Q: why can't argon be used for blimps?

A: We need to determine the reason for which argon is not used in blimps.

Q: A solution is made by mixing 11.3 g of tea in 95.0 g of water. What is the mass percent of tea in…

A: Recall the data, mass of tea=11.3 g mass of water=95.0 g Find out mass % of tea in solution?

Q: What is the pOH of a 0.053 M solution of KOH at 25 °C? 1.28 12.72 13.11 0.89

A: We have given for KOH solution.  Concentration of KOH solution = 0.053 M  KOH will dissociates as;…

Q: For this problem. How would I find out the amount of Na2CO3 to reach the stoichiometric quantities

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Q: Can you show both resonance structures?

A: -> N-bromosuccinimide (NBS) is used for allylic bromination and proceeds through formation of…

Q: Elijah titrated 75.00 mL of 0.30 M ammonia with 0.40 M HBr. NH3 Kb = 1.8 x 10-5 What is the pH of…

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Q: The following stands for the frequency factor in the Arrhenius equation.    Ea  R   A k

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Q: Co-60 is used extensively in radiotherapy as a source of y-rays. Its half life is 5.27years. a) How…

A: half life = 5.27 years

Q: A 150-ml sample of water containing Ca2+ and Mg2+ was treated with sodium hydroxide solution to…

A: EDTA complexometric titrations are based on the fact that many metallic ions form stable complexes…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".